Finally, _actually delete the machine code_ for a function, after it has

been emitted.  Also, since the FPK pass is causing memory access violations,
disable it.

llvm-svn: 10559

llvm/lib/Target/X86/X86CodeEmitter.cpp

@@ -19,6 +19,7 @@
 #include "llvm/CodeGen/MachineCodeEmitter.h"
 #include "llvm/CodeGen/MachineFunctionPass.h"
 #include "llvm/CodeGen/MachineInstr.h"
+#include "llvm/CodeGen/Passes.h"
 #include "llvm/Function.h"
 #include "Support/Debug.h"
 #include "Support/Statistic.h"
@@ -211,6 +212,8 @@ namespace {
 bool X86TargetMachine::addPassesToEmitMachineCode(FunctionPassManager &PM,
                                                   MachineCodeEmitter &MCE) {
   PM.add(new Emitter(MCE));
+  // Delete machine code for this function
+  PM.add(createMachineCodeDeleter());
   return false;
 }
 

llvm/lib/Target/X86/X86TargetMachine.cpp

@@ -79,7 +79,7 @@ bool X86TargetMachine::addPassesToEmitAssembly(PassManager &PM,
   // kill floating point registers at the end of basic blocks. this is
   // done because the floating point register stackifier cannot handle
   // floating point regs that are live across basic blocks.
-  PM.add(createX86FloatingPointKillerPass());
+  //PM.add(createX86FloatingPointKillerPass());
 
   // Perform register allocation to convert to a concrete x86 representation
   PM.add(createRegisterAllocator());
@@ -101,6 +101,10 @@ bool X86TargetMachine::addPassesToEmitAssembly(PassManager &PM,
     PM.add(createX86CodePrinterPass(std::cerr, *this));
 
   PM.add(createX86CodePrinterPass(Out, *this));
+
+  // Delete machine code for this function
+  PM.add(createMachineCodeDeleter());
+
   return false; // success!
 }
 
@@ -137,7 +141,7 @@ void X86JITInfo::addPassesToJITCompile(FunctionPassManager &PM) {
   // kill floating point registers at the end of basic blocks. this is
   // done because the floating point register stackifier cannot handle
   // floating point regs that are live across basic blocks.
-  PM.add(createX86FloatingPointKillerPass());
+  //PM.add(createX86FloatingPointKillerPass());
 
   // Perform register allocation to convert to a concrete x86 representation
   PM.add(createRegisterAllocator());